The screwdriver can also be used as a cheap weapon (260 EMC), inflicting 3 hearts (6 hp) of damage at the cost of 8 durability each hit. This means it will take 32 durability to kill most overworld mobs (zombies, skeletons and creepers). However, with the implementation of Balkon's weapon mod, an iron knife that deals 3.5 hearts (7 hp) of damage and only takes 1 durability per hit can be made with the same resources (although, a screwdriver can be used for multiple purposes).